The all-weather lifeboat Jock & Annie Slater put to sea shortly at 11am, and 35 minutes later located the stricken Welsh motor cruiser 11 miles north east of Wicklow Harbour.
A towline was established and the cruiser was taken in tow back to Wicklow Harbour, but as they approached the harbour the skipper of the cruiser reported his vessel was taking on water.
As a precaution, the crew prepared a pump and the inshore lifeboat was launched to assist. However, the water was cleared with a bilge pump and the lifeboat pump was not required, Wicklow RNLI says.
It added that the motor cruiser was brought alongside the East Pier shortly before 2pm and the two people and three dogs were landed safely ashore.
Much earlier, Baltimore RNLI in West Cork was called out to a yacht in difficulty south of Sherkin Island.
The inshore lifeboat was launched at 12.31am to assist a 30ft yacht, with two people onboard, that was in difficulty in the Gascanane Sound.
The lifeboat reached the casualty vessel within 20 minutes and found the yacht’s crew to be well before escorting their vessel to the north pier in Baltimore.
They assessed the situation and once the lifeboat crew were happy that the crew on board the vessel were okay, they escorted the vessel to the north pier in Baltimore.
Baltimore RNLI press officer Kate Callanan said: “Although they were not in any immediate danger, the crew of the yacht did the right thing in alerting the coastguard [who tasked the lifeboat].
“At the time of the call there was heavy fog, and the area they were in is notorious for strong tides.
“If you get into difficulty at sea or on the coast, call 999 or 112 and ask for the coastguard.”